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为可扩展的URLLC设计多用户不连贯的大规模SIMO系统

Zheng Dong¹, He Chen², Jian-Kang Zhang³

¹School of Information Science and Engineering, Shandong University, Qingdao 266237, China.

Entropy (Basel, Switzerland)

|September 28, 2023

概括

本研究介绍了一个非直角,非连贯的大型SIMO框架,用于6G系统中可扩展的超可靠的低延迟通信 (sURLLC). 新的设计提高了可靠性,并通过优化用户功率和星座任务来减少延迟,优于现有的方法.

科学领域:

无线通信系统无线通信系统
信号处理信号处理
信息理论信息理论

背景情况:

超越5G (B5G) 和6G系统需要可扩展的超可靠的低延迟通信 (sURLLC).
大规模的单输入多输出 (SIMO) 系统为高可靠性提供多样性收益.
传统的道估计引入了显著的开销和延迟.

研究的目的:

为sURLLC.开发和优化一个非对角和非连贯的多用户大规模SIMO框架.
为了利用庞大的天线阵列实现超高可靠性.
通过采用不连贯的通信技术来减少延迟和开销.

主要方法:

倡导不连贯的通信,它依赖于大规模的色系数,而不是即时的通道状态信息 (CSI).
在大规模的SIMO系统中设计一种新的差分调制方案,用于非直角通道访问.
提出一个基于最大-最小Kullback-Leibler (KL) 差异的设计,以共同优化传输功率和子星座分配.

主要成果:

拟议的非直角,非连贯的大规模SIMO框架可以实现可扩展的sURLLC.
差分调制方案确保了多个用户的独特信号确定.
与最大最小欧几里德距离和常规连贯ZF接收器相比,最大最小KL分歧设计显著提高了错误性能.

结论:

开发的框架有效地支持sURLLC在未来的无线系统中.
不连贯的通信和优化的功率/星座设计对于提高性能和可扩展性至关重要.
拟议的方法提供了优越的错误性能,特别是对于细胞边缘用户.

关键词:

这是一个巨大的SIMO.非对等的多重访问 (NOMA)不连贯的沟通不连贯的沟通可扩展的超可靠的低延迟通信 (URLLC)一个独特的可分解星座群.

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